Module BatInt32

module BatInt32: sig .. end
32-bit integers.

This module provides operations on the type int32 of signed 32-bit integers. Unlike the built-in int type, the type int32 is guaranteed to be exactly 32-bit wide on all platforms. All arithmetic operations over int32 are taken modulo 232.

Any integer literal followed by l is taken to be an int32. For instance, 1l is Int32.one.

Performance notice: values of type int32 occupy more memory space than values of type int, and arithmetic operations on int32 are generally slower than those on int. Use int32 only when the application requires exact 32-bit arithmetic.

This module extends Stdlib's Int32 module, go there for documentation on the rest of the functions and types.
Author(s): Xavier Leroy (base module), Gabriel Scherer, David Teller


type t = int32 
val zero : int32
The 32-bit integer 0.
val one : int32
The 32-bit integer 1.
val minus_one : int32
The 32-bit integer -1.
val neg : int32 -> int32
Unary negation.
val add : int32 -> int32 -> int32
Addition.
val sub : int32 -> int32 -> int32
Subtraction.
val mul : int32 -> int32 -> int32
Multiplication.
val div : int32 -> int32 -> int32
Integer division. This division rounds the real quotient of its arguments towards zero, as specified for Pervasives.(/).
Raises Division_by_zero if the second argument is zero.
val rem : int32 -> int32 -> int32
Integer remainder. If y is not zero, the result of Int32.rem x y satisfies the following property: x = Int32.add (Int32.mul (Int32.div x y) y) (Int32.rem x y).
Raises Division_by_zero if the second argument is zero.
val modulo : int32 -> int32 -> int32
val pow : int32 -> int32 -> int32
val min_num : int32
val max_num : int32
val succ : int32 -> int32
Successor. Int32.succ x is Int32.add x Int32.one.
val pred : int32 -> int32
Predecessor. Int32.pred x is Int32.sub x Int32.one.
val abs : int32 -> int32
Return the absolute value of its argument.
val max_int : int32
The greatest representable 32-bit integer, 231 - 1.
val min_int : int32
The smallest representable 32-bit integer, -231.
val logand : int32 -> int32 -> int32
Bitwise logical and.
val logor : int32 -> int32 -> int32
Bitwise logical or.
val logxor : int32 -> int32 -> int32
Bitwise logical exclusive or.
val lognot : int32 -> int32
Bitwise logical negation
val shift_left : int32 -> int -> int32
Int32.shift_left x y shifts x to the left by y bits. The result is unspecified if y < 0 or y >= 32.
val shift_right : int32 -> int -> int32
Int32.shift_right x y shifts x to the right by y bits. This is an arithmetic shift: the sign bit of x is replicated and inserted in the vacated bits. The result is unspecified if y < 0 or y >= 32.
val shift_right_logical : int32 -> int -> int32
Int32.shift_right_logical x y shifts x to the right by y bits. This is a logical shift: zeroes are inserted in the vacated bits regardless of the sign of x. The result is unspecified if y < 0 or y >= 32.
val (--) : t -> t -> t BatEnum.t
Enumerate an interval.

5l -- 10l is the enumeration 5l,6l,7l,8l,9l,10l. 10l -- 5l is the empty enumeration

val (---) : t -> t -> t BatEnum.t
Enumerate an interval.

5l -- 10l is the enumeration 5l,6l,7l,8l,9l,10l. 10l -- 5l is the enumeration 10l,9l,8l,7l,6l,5l.

val of_int : int -> int32
Convert the given integer (type int) to a 32-bit integer (type int32).
val to_int : int32 -> int
Convert the given 32-bit integer (type int32) to an integer (type int). On 32-bit platforms, the 32-bit integer is taken modulo 231, i.e. the high-order bit is lost during the conversion. On 64-bit platforms, the conversion is exact.
val of_float : float -> int32
Convert the given floating-point number to a 32-bit integer, discarding the fractional part (truncate towards 0). The result of the conversion is undefined if, after truncation, the number is outside the range [Int32.min_int, Int32.max_int].
val to_float : int32 -> float
Convert the given 32-bit integer to a floating-point number.
val of_int64 : int64 -> int32
Convert the given 64-bit integer (type int64) to a 32-bit integer (type int32). The 64-bit integer is taken modulo 232, i.e. the top 32 bits are lost during the conversion.
val to_int64 : int32 -> int64
Convert the given 32-bit integer (type int32) to a 64-bit integer (type int64).
val of_nativeint : nativeint -> int32
Convert the given native integer (type nativeint) to a 32-bit integer (type int32). On 64-bits platform the top 32 bits are lost.
val to_nativeint : int32 -> nativeint
Convert the given 32-bit integer (type int32) to a native integer.
val of_string : string -> int32
Convert the given string to a 32-bit integer. The string is read in decimal (by default) or in hexadecimal, octal or binary if the string begins with 0x, 0o or 0b respectively.
Raises Failure if the given string is not a valid representation of an integer, or if the integer represented exceeds the range of integers representable in type int32.
val to_string : int32 -> string
Return the string representation of its argument, in signed decimal.
val bits_of_float : float -> int32
Return the internal representation of the given float according to the IEEE 754 floating-point ``single format'' bit layout. Bit 31 of the result represents the sign of the float; bits 30 to 23 represent the (biased) exponent; bits 22 to 0 represent the mantissa.
val float_of_bits : int32 -> float
Return the floating-point number whose internal representation, according to the IEEE 754 floating-point ``single format'' bit layout, is the given int32.
val of_byte : char -> int32
val to_byte : int32 -> char
val pack : string -> int -> int32 -> unit
pack str off i writes the little endian bit representation of i into string str at offset off
val pack_big : string -> int -> int32 -> unit
pack_big str off i writes the big endian bit representation of i into string str at offset off
val unpack : string -> int -> int32
unpack str off reads 4 bytes from string str starting at offset off as a little-endian int32
val unpack_big : string -> int -> int32
unpack str off reads 4 bytes from string str starting at offset off as a big-endian int32
val compare : t -> t -> int
The comparison function for 32-bit integers, with the same specification as Pervasives.compare. Along with the type t, this function compare allows the module Int32 to be passed as argument to the functors Set.Make and Map.Make.
val equal : t -> t -> bool
Equality function for 32-bit integers, useful for HashedType.
val ord : t -> t -> BatOrd.order
val (+) : t -> t -> t
val (-) : t -> t -> t
val ( * ) : t -> t -> t
val (/) : t -> t -> t
val ( ** ) : t -> t -> t
val operations : t BatNumber.numeric

Submodules grouping all infix operators

module Infix: BatNumber.Infix  with type bat__infix_t = t
module Compare: BatNumber.Compare  with type bat__compare_t = t

Boilerplate code


Printing

val print : 'a BatInnerIO.output -> t -> unit
prints as decimal string
val print_hex : 'a BatInnerIO.output -> t -> unit
prints as hex string